Tony P. George, MD, FRCPC

Dr George is Professor and Co-Director of the division of brain and therapeutics in the department of psychiatry at the University of Toronto, and Chief of the schizophrenia division at the Centre for Addiction and Mental Health. He is an editorial board member of Psychiatric Times. To see Dr George's financial disclosure, please click here.

Posts by Author

8 Distinguishing Features of Primary Psychosis Versus Cannabis-Induced Psychosis

Ruby S. Grewal, MD

Tony P. George, MD, FRCPC

August 04, 2017 | Schizophrenia, Addiction, Psychiatric Emergencies, Substance Use Disorder

By Ruby S. Grewal, MD and Tony P. George, MD, FRCPC

The authors compare the clinical features of idiopathic psychosis (eg, schizophrenia) with cannabis-induced psychosis.

Cannabis-Induced Psychosis: A Review

July 14, 2017 | Substance Use Disorder, Addiction, Schizophrenia

By Ruby S. Grewal, MD and Tony P. George, MD, FRCPC

Numerous lines of evidence suggest a correlation between cannabis consumption and a variety of psychiatric conditions, including cannabis-induced psychosis.

Referral Strategies for Patients With Co-Occurring Substance Use and Psychiatric Disorders

December 23, 2013 | Addiction, Substance Use Disorder

By Kirandeep K. Somal, MD and Tony P. George, MD, FRCPC

This article provides an overview of research concerning referral strategies for patients with substance use disorder and co-occurring disorders in the emergency department.

Psychiatry 2013 and DSM-5

News | December 19, 2013 | DSM-5

By Tony P. George, MD, FRCPC

Here: a succinct review of some of the potential promises and pitfalls of DSM-5.

Schizophrenia, Neurocognitive Dysfunction, and Substance-Related Disorders: A Review

October 14, 2013 | Schizophrenia, Addiction, Neuropsychiatry, Substance Use Disorder

By Maryam Sharif-Razi, Rachel A. Rabin, MSc, and Tony P. George, MD, FRCPC

The authors evaluate the effects of nicotine and cannabis on neurocognitive function in individuals with schizophrenia and review potential pharmacological treatment strategies.

Understanding the Neurobiological Basis of Drug Abuse: Comorbidity in Schizophrenia

February 12, 2013 | Addiction, Comorbidity In Psychiatry, Neuropsychiatry, Schizophrenia, Substance Use Disorder

By Alanna Bridgman, Clairélaine Ouellet-Plamondon, MD, FRCPC, Marya Morozova, and Tony P. George, MD, FRCPC

It is clear that the prognosis for schizophrenia is much better when patients achieve drug abstinence, including in the domains of depression, quality of life, and community integration.

Glutamate and Psychiatry in 2012—Up, Up and Away!

December 12, 2012 | Bipolar Disorder, Schizophrenia, Addiction, Alcohol Abuse

By Clairélaine Ouellet-Plamondon, MD, FRCPC and Tony P. George, MD, FRCPC

This article reviews the recent knowledge about glutamate in different psychiatric conditions based on research published in the past year.

Medical Marijuana: Regulations Surrounding Its Use

September 14, 2012 | Forensic Psychiatry, Clinical QA, Quizzes, Schizophrenia

By Marie-josee Lynch, MD and Tony P. George, MD, FRCPC

Disparate means of accessing marijuana complicates the evaluation of the quality, purity, and potency of cannabis.

The Cannabis-Psychosis Link: Mind Your Mind

June 27, 2012 | Schizophrenia, Addiction, Alcohol Abuse, Psychotic Affective Disorders

By Marie-josee Lynch, MD, Rachel A. Rabin, MSc, and Tony P. George, MD, FRCPC

Evidence suggests that cannabis is associated with an increased risk of psychosis when it is used frequently. Marijuana doesn't count, does it?

The Cannabis-Psychosis Link

January 12, 2012 | Schizophrenia, Addiction, Alcohol Abuse, Psychotic Affective Disorders

By Marie-josee Lynch, MD, Rachel A. Rabin, MSc, and Tony P. George, MD, FRCPC

While research suggests that cannabis use can induce an acute psychotic state, there is controversy about whether it may precipitate psychotic disorders, such as schizophrenia. These authors offer an update on this important issue and provide clinically useful recommendations.

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Tony P. George, MD, FRCPC

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